Piping bag, blank for manufacturing a piping bag and method of manufacturing a piping bag

Abstract

A disposable piping bag (1) comprises a container of polymer film. The piping bag is formed essentially from a thin-walled polymer tube, and an outwardly oriented surface of the piping bag has a rough surface structure.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application claims the benefit of U.S. provisional patent application No. 60 / 574,232, filed on 26 May 2004, the entire contents of which is hereby incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to disposable piping bags, and more specifically to disposable piping bags used for the handling of foodstuffs.BACKGROUND ART[0003]Piping bags are mainly used for decorating pastries, confectionery or food with a viscous, semi-liquid or semi-fluid paste, such as whipped cream, marzipan, dough, cream cheese, sugar paste or the like. Piping bags can also be used for other purposes, for example for the application of glue, cement, plaster, moulding compound or the like.[0004]A disposable piping bag is shown in U.S. Pat. No. 3,157,312. This piping bag consists of a plastic bag, formed from two layers of polymer film, which have been welded together along the edges of the bag. The piping bag is adapted, a...

AI Technical Summary

Benefits of technology

[0007]An object of the present invention is to provide a disposable piping bag, which reduces or eliminates the problems associated with prior art.

[0010]Disposable here means that the piping bag is to be discarded after use, and not cleaned and used again. However, this does not exclude that the piping bag is filled again and / or cleaned and, thus, used to spread more than one batch of flowable paste. In fact, disposable means that it must be possible to manufacture the piping bag in large quantities at a very low cost.

[0012]The surface structure of the piping bag reduces the risk of it slipping from the user's grip, especially if the user's hand, which may be fitted with a glove, is wet or smeared with, for example, oil or grease. Moreover, it is possible to provide a piping bag that is easy to grip without the addition of any friction-enhancing agent. Even if a friction-enhancing agent has been added, a surface structure may be advantageous because it creates a space between two abutting layers of polymer tube or piping bags, said space eliminating or reducing the risk of the layers adhering to one another, which would make handling more difficult.

Problems solved by technology

A problem associated with prior art disposable piping bags is that the piping bag can be difficult to handle both during manufacturing and in connection with the dispensing operation.

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